Fix "control reaches end of non-void function"
Fix "control reaches end of non-void function"

Former-commit-id: b95025735619d8a315a9b5549a8187baf50f8b4b
darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide